Air compressor



FIG. 1 is a right front perspective view of an air compressor showing a first embodiment of my new design.

FIG. 2 is a right side view thereof.

FIG. 3 is a left side view thereof.

FIG. 4 is a rear view thereof.

FIG. 5 is a front view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The dashed lines and the areas within the dashed lines form no part of the claimed ornamental design. 

The ornamental design for an air compressor, as shown and described. 